Time–motion, heart rate, perceptual and motor behaviour demands in small-sides soccer games: Effects of pitch size

The aim of this study was to examine physical, physiological, and motor responses and perceived exertion during different soccer drills. In small-sided games, the individual playing area (∼275 m2, ∼175 m2, and ∼75 m2) was varied while the number of players per team was kept constant: 5 vs. 5 plus goalkeepers. Participants were ten male youth soccer players. Each session comprised three small-sided game formats, which lasted 8 min each with a...